Does Axios support Set-Cookie? Is it possible to authenticate through Axios HTTP request?

Yes you can set cookies by Axios. The cookies need to be passed into the headers object. You can send cookies in a get/post/put/delete/etc. request: As suggested by Aaron:

axios.get('URL', {
  withCredentials: true
}); 
axios.post('URL', data, {
withCredentials: true
}); 
axios.put('URL', data, {
withCredentials: true
});
axios.delete('URL', data, {
withCredentials: true
});

Or you may also try this:

axios.get(url, {
            headers: {
                Cookie: "cookie1=value; cookie2=value; cookie3=value;"
            }
        }).then(response => {
              console.log(response);
});

In case anyone else faces the problem I've had,

Here's a repost of my answer on a similar question https://stackoverflow.com/a/62821342/8479303

In my case, the network panel showed that the response had the 'Set-Cookie' header, but in axios the header wouldn't show up, and the cookie was being set.

For me, the resolution was setting the Access-Control-Expose-Headers header.

For explanation, from this comment on an issue in the axios repository I was directed to this person's notes which led me to set the Access-Control-Expose-Headers header -- and now the cookie is properly setting in the client.

So, in Express.js, I had to add the exposedHeaders option to my cors middleware:

const corsOptions = {
  //To allow requests from client
  origin: [
    "http://localhost:3001",
    "http://127.0.0.1",
    "http://104.142.122.231",
  ],
  credentials: true,
  exposedHeaders: ["set-cookie"],
};

...

app.use("/", cors(corsOptions), router);

It was also important that on the axios side I use the withCredentials config in following axios requests that I wanted to include the cookies.

ex/

const { data } = await api.get("/workouts", { withCredentials: true });

I tried setting withCredentials: true but was still getting this error:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://localhost:4000/users/register. (Reason: CORS request did not succeed).

CORS was configured to allow requests from the frontend port.

I had to change the default options for axios like so:

axios.defaults.withCredentials = true

And the issue was solved. No error and Set-Cookie working as expected.

cookie can't be touched, the thing is it gets bundled to request object after appended to the response object.

function sign(req,res){
  res.cookie("x-token", signed, { maxAge: (new JWTService().jwtExpirySeconds * 
   1000) });
}

client after receiving this response just have to continue with requests, set-cookie in the name of "Cookie " will be bundled to those request, like this

caveat: when http cookie expires its is automatically removed and not bundled to request there after.